Most of the new duties kicked in Thursday, hitting countries with elevated rates that mark a departure from long-standing trade norms.

In an executive order, Trump says "I find that the Government of India is currently directly or indirectly importing Russian Federation oil" and due to those purchases, imports of Indian goods into the United States "shall be subject to an additional ... rate of duty of 25%."

Donald Trump has announced a 25% 'secondary tariff' on Indian goods, effective August 27, to penalize India's oil purchases from Russia. This aims to pressure India to sever ties with Russia, similar to secondary sanctions.